Di**saurs may have been doomed long before the asteroid hit
 

Di**saurs may have been doomed long before the asteroid hit
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Di**saurs gradually began to die out at least 40 million years before the devastating asteroid impact killed the rest in a dramatic way about 66 million years ago, concludes an extensive new study.

The research, outlined in the journal Proceedings of the National Academy of Sciences, is the first to incorporate phylogenetic information — meaning how species are related to one a**ther — when studying speciation and extinction in di**saurs.

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The data provides evidence that things went from really bad to worse for most di**saurs that did **t evolve into birds. Read more...


More about Mammals, Evolution, Asteroid, Extinction, and Di**saurshttp://ad.doubleclick.net/ad/mash.to...ord=1461085707http://feeds.feedburner.com/~r/Mashable/~4/enE56rO69EE